Ice Maker

ABSTRACT

An ice maker comprising a casing ( 1 ), a water storage box ( 2 ), and an ice-making mold ( 3 ). The water storage box ( 2 ) is placed inside the casing ( 1 ) and forms a water storage cavity ( 21 ). The ice-making mold ( 3 ) is provided with an upper through hole ( 31 ) and a lower through hole ( 32 ). The ice-making mold ( 3 ) includes a first pairing part ( 33 ) and a second pairing part ( 34 ) that pairs with the first pairing part ( 33 ). The first pairing part ( 33 ) is equipped with a first opening cavity ( 331 ), and the second pairing part ( 34 ) is equipped with a second opening cavity ( 341 ). When the first pairing part ( 33 ) and the second pairing part ( 34 ) are combined, the first opening cavity ( 331 ) and the second opening cavity ( 341 ) come together to form an ice-making cavity ( 35 ).

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a Continuation Application of PCT Application No. PCT/CN2022/093230 filed on May 17, 2022, which claims the benefit of Chinese Patent Application Nos. 202220723172.1 and 202220727752.8 filed on Mar. 30, 2022. All the above are hereby incorporated by reference in their entirety.

TECHNICAL FIELD

The present application relates to the technical field of making ice cubes, in particular to an ice maker.

BACKGROUND

Ice cubes are often used in the preparation of beverages or wines to cool them down and make them taste better. An ice maker is a commonly used appliance for making ice cubes. When in use, the water is put into the ice maker, and the ice maker is put into the refrigerator. After a certain period of time, the water in the ice maker will freeze into ice cubes, and the shape of the ice cubes corresponds to the shape of the cavity in the ice maker.

Ice cubes are in the ideal state when they are completely transparent. Ice cubes that are completely transparent and regular in shape are more popular with users. Because the water contains air, the ice cubes produced by the current ice maker contain air bubbles, and it is difficult to appear transparent. And, because the water will deform after freezing, the shape is irregular.

SUMMARY

The purpose of the present application is to provide an ice maker that can produce completely transparent ice cubes that are not easily deformed when frozen and have regular shapes.

The application discloses an ice maker, including a casing, a water storage box and an ice-making mold; the water storage box is placed in the casing and provided with a water storage cavity; the ice-making mold is provided with an upper through hole and a lower through hole; the ice-making mold includes a first pairing part and a second pairing part paired with the first pairing part, the first pairing part is provided with a first opening cavity, and the second pairing part is provided with a second opening cavity; when the first pairing part and the second pairing part are combined, the first opening cavity and the second opening cavity are combined to form an ice-making cavity, and the upper through hole and the lower through hole are respectively connected with the ice-making cavity; the first pairing part and the second pairing part are inserted into the water storage cavity after being combined and the first pairing part and the second pairing part are suspended in the water storage cavity; the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity;

-   -   wherein, pairing surfaces of the first pairing part and the         second pairing part face a side wall surface of the water         storage cavity.

Optionally, the pairing surfaces of the first pairing part and the second pairing part are parallel to a side wall surface of the water storage cavity.

Optionally, a pairing surface of the first pairing part is provided with an insertion protrusion, and a pairing surface of the second pairing part is provided with a socket, when the first pairing part and the second pairing part are combined, the insertion protrusion is inserted into the socket.

Optionally, the pairing surface of the first pairing part is also provided with a socket, and the pairing surface of the second pairing part is also provided with an insertion protrusion.

Optionally, a first raised line and a first sinking groove are provided on an edge of the first opening cavity of the first pairing part; a second sinking groove is provided at a position corresponding to the first raised line on an edge of the second opening cavity of the second pairing part; and a second raised line is provided at a position corresponding to the first sinking groove; when the first pairing part and the second pairing part are combined, the first raised line is embedded in the second sinking groove, and the second raised line is embedded in the first sinking groove.

Optionally, the ice maker further comprises a first housing; the water storage box is installed in the first housing, and the water storage box and the first housing form a first inner gap.

Optionally, the ice maker further comprises a second housing; the first housing is installed in the second housing, and the second housing and the first housing form a second inner gap which is used for setting a thermal insulation layer.

Optionally, the ice maker further comprises a thermal insulation layer, and the thermal insulation layer is arranged in the second inner gap.

Optionally, there are at least two first opening cavities and at least two second opening cavities; the at least two first opening cavities are arranged horizontally relative to the water storage cavity, and the at least two second opening cavities are arranged horizontally relative to the water storage cavity.

Optionally, there are at least two water storage cavities formed in the water storage box, and a baffle is provided between two adjacent water storage cavities, and a water outlet is opened on the baffle.

Optionally, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface;

-   -   wherein, when the first pairing part and the second pairing part         are combined and inserted into the water storage cavity, the         first pairing part and the second pairing part are suspended in         the water storage cavity, the upper through hole is connected         with the outside world and the ice-making cavity, and the lower         through hole is connected with the water storage cavity and the         ice-making cavity, and the first stepped surface cooperates with         the second stepped surface, so as to resist the second stepped         surface, and the bump protrudes downward relative to the first         stepped surface.

In the ice maker of the present application, in the process of cooling down and freezing, the air in the water in the ice-making cavity will gradually move into the water storage cavity, and finally, there is no air in the ice cubes formed by freezing in the ice-making cavity, and there are no air bubbles. The ice cubes are completely transparent. In addition, the side wall surface of the water storage cavity can tightly press the first pairing part and the second pairing part, thereby offsetting the expansion force, preventing the first pairing part and the second pairing part from being separated or deformed, and finally making the shape of the ice cubes regular.

DESCRIPTION OF DRAWINGS

The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation of the present application, and explain the principle of the present application together with the text description. Apparently, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort. In the drawings:

FIG. 1 is a schematic diagram of the ice maker of the embodiment of the present application;

FIG. 2 is an exploded schematic view of the ice maker of the embodiment of the present application;

FIG. 3 is a top view of the ice maker of the embodiment of the present application;

FIG. 4 is a sectional view of A-A direction in FIG. 3 ;

FIG. 5 is a sectional view of B-B direction in FIG. 3 ;

FIG. 6 is a schematic diagram of the ice-making mold of the embodiment of the present application;

FIG. 7 is another schematic diagram of the ice-making mold of the embodiment of the present application;

FIG. 8 is an exploded schematic view of the ice-making mold of the embodiment of the present application; and

FIG. 9 is another exploded schematic view of the ice-making mold of the embodiment of the present application.

Among them, 1. casing; 11. first housing; 111. first inner gap; 12. second housing; 121. second inner gap; 2. water storage box; 21. water storage cavity; 212. side wall surface; 213. sub cavity; 22. first stepped surface; 23. baffle; 231. water outlet; 3. ice-making mold; 31. upper through hole; 32. lower through hole; 33. first pairing part; 331. first opening cavity; 332. second stepped surface; 333. bump; 334. pairing surface; 335. first raised line; 336. first sinking groove; 337. first handle portion; 338. insertion protrusion; 34. second pairing part; 341. second opening cavity; 342. socket; 343. second raised line; 344. second sinking groove; 345. second handle portion; 35. ice-making cavity.

DETAILED DESCRIPTION

It should be understood that the terminology and specific structural and functional details disclosed herein are representative only for describing specific embodiments. However, the present application can be embodied in many alternative forms and should not be construed as being merely limited to the examples set forth herein.

The present application will be described in detail below with reference to the accompanying drawings and optional embodiments.

As shown in FIGS. 1 to 4 , as an embodiment of the present application, an ice maker is disclosed, including a casing 1, a water storage box 2 and an ice-making mold 3. The water storage box 2 is arranged in the casing 1 and is provided with a water storage cavity 21. An upper through hole 31 and a lower through hole 32 are provided on the ice-making mold 3. The ice-making mold 3 includes a first pairing part 33 and a second pairing part 34 paired with the first pairing part. The first pairing part 33 is provided with a first opening cavity 331, and the second pairing part 34 is provided with a second opening cavity 341. When the first pairing part 33 and the second pairing part 34 are combined, the first opening cavity 331 and the second opening cavity 341 are combined to form an ice-making cavity 35, and the upper through hole 31 and the lower through hole 32 are respectively connected with the ice-making cavity 35.

The first pairing part 33 and the second pairing part 34 are inserted into the water storage cavity 21 after being combined and the first pairing part 33 and the second pairing part 34 are suspended in the water storage cavity 21. The upper through hole 31 is connected with the outside world and the ice-making cavity 35, and the lower through hole 32 is connected with the water storage cavity 21 and the ice-making cavity 35. Wherein, the pairing surface 334 of the first pairing part 33 and the second pairing part 34 are facing the side wall surface 212 of the water storage cavity 21. Specifically, the first pairing part 33 and the second pairing part 34 are in interference fit with the side wall surface 212 of the water storage cavity 21 and seal the water storage cavity 21.

The ice maker of the present application is provided with a water storage box 2 and an ice-making mold 3, the ice-making mold 3 is provided with an upper through hole 31 and a lower through hole 32, and the ice-making mold 3 is placed in the water storage cavity 21 of the water storage box 2 and is suspended in the air, that is, there is still a certain space between the bottom of the ice-making mold 3 and the bottom of the water storage box 2. When in use, the water can be injected into the water storage cavity 21 first, and then the first pairing part 33 and the second pairing part 34 are combined and inserted into the water storage cavity 21, and the water enters through the upper through hole 31 and the lower through hole 32 and fills the water storage cavity 21 and the ice-making cavity 35 (certainly they can also be filled in other ways). When freezing, because the water storage box 2 has the isolation of the casing 1, the ice-making mold 3 is directly exposed in the water storage box 2, the water in the ice-making cavity 35 cools down and freezes more quickly than the water in the water storage cavity 21. Since the air in the water will move from a low temperature place to a high temperature place, in the process of cooling and freezing, the air in the water in the ice-making cavity 35 will gradually move into the water storage cavity 21, and finally, there is no air in the ice cubes formed by freezing in the ice-making cavity, and there are no air bubbles. The ice cubes are completely transparent.

More importantly, the volume of water will expand when it freezes, and the applicant found that the ice-making cavity 35 formed by the combination of the ice maker is at risk of being stretched or deformed due to expansion, resulting in irregularly shaped ice cubes in the ice-making cavity and failing to get the desired shape. In the ice maker of the present application, the first pairing part 33 and the second pairing part 34 are inserted into the water storage cavity 21 with an interference fit after pairing, and the pairing surface 334 of the first pairing part 33 and the second pairing part faces the side wall surface 212 of the water storage cavity 21. Like this, although the water in the ice-making cavity 35 can expand during freezing, because the pairing surface 334 of the first pairing part 33 and the second pairing part 34 faces the side wall surface 212 of the water storage cavity 21, when the water freezes and expands, the side wall surface 212 of the water storage cavity 21 can tightly press the first pairing part 33 and the second pairing part 34, thereby offsetting the expansion force and preventing the first pairing part 33 and the second pairing part from being separated or deformed, and finally making the regular ice cube in shape.

Optionally, as shown in FIG. 4 , the pairing surface 334 of the first pairing part 33 and the second pairing part 34 is parallel to the side wall surface 212 of the water storage cavity 21. In this solution, the pairing surface 334 of the first pairing part 33 and the second pairing part 34 is parallel to the side wall surface 212 of the water storage cavity 21, and the separation force acting on the first pairing part 33 and the second pairing part 34 caused by freezing and expanding of the water is perpendicular to the side wall surface 212 of the water storage cavity 21, and the side wall surface 212 can more offset the force of the first pairing part 33 and the second pairing part 34, and the effect of compression of the side wall surface 212 of the water storage cavity 21 is better.

Optionally, as shown in FIG. 8 and FIG. 9 , an insertion protrusion 338 is provided on the pairing surface 334 of the first pairing part 33, and a socket 342 is provided on the pairing surface 334 of the second pairing part 34. When the first pairing part 33 and the second pairing part 34 are combined, the insertion protrusion 338 is inserted into the socket 342. In this solution, the insertion protrusion 338 and the socket 342 can play the role of preliminary positioning. Before being inserted into the water storage cavity 21, the combination and positioning of the first pairing part 33 and the second pairing part 34 is realized by cooperation of the insertion protrusion 338 and the socket 342, which facilitates the fast and accurate alignment of the first pairing part 33 and the second pairing part 34, and facilitates the insertion of the first pairing part 33 and the second pairing part 34 into the water storage cavity 21, and thus the first pairing part 33 and the second pairing part 34 are not easily separated.

Optionally, as shown in FIGS. 8 and 9 , a socket 342 is also provided on the pairing surface 334 of the first pairing part 33, and an insertion protrusion 338 is also provided on the pairing surface 334 of the second pairing part 34. In this solution, the pairing surface 334 of the first pairing part 33 is provided with the socket 342 and the insertion protrusion 338 at the same time, and the pairing surface 334 of the second pairing part 34 is provided with the socket 342 and the insertion protrusion 338 at the same time, which has a better positioning effect. More specifically, multiple sockets 342 and insertion protrusions 338 on the pairing surfaces 334 can be provided.

Optionally, as shown in FIG. 8 and FIG. 9 , a first raised line 335 and a first sinking groove 336 are provided on the edge of the first opening cavity 331 of the first pairing part 33. A second sinking groove 344 is provided at a position corresponding to the first raised line 335 on the edge of the second opening cavity 341 of the second pairing part 34, and a second raised line 343 is provided at a position corresponding to the first sinking groove 336. When the first pairing part 33 and the second pairing part 34 are combined, the first raised line 335 is embedded in the second sinking groove 344, and the second raised line 343 is embedded in the first sinking groove 336. In this solution, a first raised line 335 and a first sinking groove 336 are provided on the edge of the first opening cavity 331, and a second sinking groove 344 is provided on the edge of the second opening cavity 341 at a position corresponding to the first raised line 335, a second raised line 343 is provided at a position corresponding to the first sinking groove 336, which can further play the role of positioning and pairing guide, and ensure the pairing effect and fast pairing of the first pairing part 33 and the second pairing part 34.

Optionally, as shown in FIG. 4 , the casing 1 further includes a first housing 11; the water storage box 2 is installed in the first housing 11, and forms a first inner gap 111 with the first housing 11. The first inner gap 111 is used to hold warm water or hot water. Because there is a space left at the bottom of the water storage cavity 21 after the ice-making mold 3 is inserted in the water storage box 2, the ice cubes will eventually freeze out in the water storage cavity 21. These ice cubes can also be used normally. However, the ice cubes generally adhere tightly to the inner wall surface of the water storage cavity 21 and are difficult to remove. In this solution, the first housing 11 is provided, and there is a gap between the water storage box 2 and the first housing 11, that is, the first inner gap 111. Warm water or hot water can be injected into the first inner gap 111 to accelerate the melting of the ice cubes adhering to the inner wall surface of the water storage cavity 21, so that the ice cubes in the water storage cavity 21 can be taken out very easily. Moreover, during the freezing process, the first housing 11 is not attached to the water storage box 2, and the first inner gap 111 can also play a certain temperature insulation effect, further expanding the cooling rate difference between the water in the ice-making cavity 35 and the water in the water storage cavity 21, and the air in the water in the ice-making cavity 35 has more sufficient time to move into the water storage cavity 21, ensuring that the ice cubes in the ice-making cavity 35 are completely transparent.

The shapes of the ice-making cavity 35 and the water storage cavity 21 can be set according to the shape of the ice cubes to be made. For example, it may be set in a cube shape, a spherical shape, or the like.

Optionally, as shown in FIG. 4 , the casing 1 further includes a second housing 12; the first housing 11 is installed in the second housing 12, and forms a second inner gap 121 with the first housing 11, and the second inner gap 121 is used for setting a thermal insulation layer. In this solution, the second inner gap 121 can be provided with a thermal insulation layer to slow down the melting speed of the ice cubes in the ice maker, which is beneficial to keep the ice cubes for a long time and is convenient for carrying the ice cubes. Moreover, in the process of freezing, the second inner gap 121 can also play a certain temperature insulation effect, further expanding the cooling rate difference between the water in the ice-making cavity 35 and the water in the water storage cavity 21, and the air in the water in the ice-making cavity 35 has more sufficient time to move into the water storage cavity 21, ensuring that the ice cubes in the ice-making cavity 35 are completely transparent.

Specifically, the water storage box 2, the first housing 11 and the second housing 12 may be detachably connected, which is beneficial to fill warm water or hot water into the first inner gap 111 and place the thermal insulation layer in the second inner gap 121 or replace the thermal insulation layer.

Optionally, the ice maker further includes a thermal insulation layer (not shown), and the thermal insulation layer is arranged in the second inner gap 121 to slow down the melting speed of the ice cubes in the ice maker.

Optionally, as shown in FIG. 5 , there are at least two first opening cavities 331, and at least two second opening cavities 341. The at least two first opening cavities 331 are arranged horizontally relative to the water storage cavity 21, and the at least two second opening cavities 341 are arranged horizontally relative to the water storage cavity 21. In this solution, the first opening cavities 331 and the second opening cavities 341 are arranged horizontally relative to the water storage cavity 21, each of the first opening cavities 331 and the second opening cavities 341 can be cooled at the same time, and the freezing speed thereof is similar, which can increase the overall freezing speed. If the first opening cavities 331 and the second opening cavities 341 are vertically arranged relative to the water storage cavity 21, the first opening cavities 331 on the top will be cooled first, and the final freezing speed will be slower from top to bottom, and the overall freezing speed will slow down.

Optionally, as shown in FIG. 5 , there are at least two water storage cavities 21 formed in the water storage box 2, and the number of ice-making molds 3 is the same as the number of water storage cavities 21. Baffles are provided between adjacent water storage cavities 21 and each baffle 23 is provided with a water outlet 231 thereon. In this solution, when injecting water into the water storage cavities 21, the water storage cavities 21 are connected through the water outlets 231, so that water flows from the current water storage cavity 21 into which the water is injected to other water storage cavities 21, and the water injection is convenient.

As shown in FIG. 4 to FIG. 7 , the inner wall surface of the water storage cavity 21 is provided with a first stepped surface 22, and the bottoms of the first pairing part 33 and the second pairing part 34 are provided with a bump 333, and the bump 333 and the edges of the pairing part 33 and the second pairing part 34 form a second stepped surface 332. The first stepped surface 22 cooperates with the second stepped surface 332 to resist the second stepped surface 332, and the bump 333 protrudes downward relative to the first stepped surface 22. In this solution, the cooperation between the first stepped surface 22 and the second stepped surface 332 can support the first pairing part 33 and the second pairing part 34. More importantly, due to the support of the first stepped surface 22 and the bump 333 protruding downward relative to the first stepped surface 22, the water level in the water storage cavity 21 is lower than the first stepped surface 22 by a certain distance, and when the water in the water storage cavity 21 freezes and expands, the water level rises, and it will not be higher than the first stepped surface 22 and will not overflow to both sides, and finally the ice cubes formed in the water storage cavity 21 have regular shapes.

Optionally, as shown in FIG. 8 , there are at least two first opening cavities 331, and at least two second opening cavities 341. At least two sub-cavities 213 are arranged in the water storage cavity 21, and the number of sub-cavities 213 is the same as that of the first opening cavity and their positions correspond to that of the ice-making cavity 35. In this solution, there are at least two first opening cavities 331, second opening cavities 341 and sub-cavities 213, and the number of ice cubes produced at one time is large.

Optionally, as shown in FIG. 8 , a first handle portion 337 is provided on the first pairing part 33, a second handle portion 345 is provided on the second pairing part 34, and the first handle portion 337 and the second handle portion 345 are combined to form a handle. In this solution, the handle can facilitate the user to insert the ice-making mold 3 into the water storage cavity 21, and can also facilitate the user to pull the ice-making mold 3 out of the water storage cavity 21.

The above content is a further detailed description of the present application in conjunction with specific optional implementation modes, and it cannot be deemed that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, some simple deduction or substitutions can be made without departing from the concept of the present application, which should be deemed to belong to the protection scope of the present application. 

What is claimed is:
 1. An ice maker, characterized in that, comprising a casing, a water storage box and an ice-making mold; the water storage box is placed in the casing and provided with a water storage cavity; the ice-making mold is provided with an upper through hole and a lower through hole; the ice-making mold includes a first pairing part and a second pairing part paired with the first pairing part, the first pairing part is provided with a first opening cavity, and the second pairing part is provided with a second opening cavity; when the first pairing part and the second pairing part are combined, the first opening cavity and the second opening cavity are combined to form an ice-making cavity, and the upper through hole and the lower through hole are respectively connected with the ice-making cavity; the first pairing part and the second pairing part are inserted into the water storage cavity after being combined and the first pairing part and the second pairing part are suspended in the water storage cavity; the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity; wherein, pairing surfaces of the first pairing part and the second pairing part face a side wall surface of the water storage cavity.
 2. The ice maker according to claim 1, characterized in that, the pairing surfaces of the first pairing part and the second pairing part are parallel to a side wall surface of the water storage cavity.
 3. The ice maker according to claim 1, characterized in that, a pairing surface of the first pairing part is provided with an insertion protrusion, and a pairing surface of the second pairing part is provided with a socket, when the first pairing part and the second pairing part are combined, the insertion protrusion is inserted into the socket.
 4. The ice maker according to claim 3, characterized in that, the pairing surface of the first pairing part is also provided with a socket, and the pairing surface of the second pairing part is also provided with an insertion protrusion.
 5. The ice maker according to claim 3, characterized in that, a first raised line and a first sinking groove are provided on an edge of the first opening cavity of the first pairing part; a second sinking groove is provided at a position corresponding to the first raised line on an edge of the second opening cavity of the second pairing part; and a second raised line is provided at a position corresponding to the first sinking groove; when the first pairing part and the second pairing part are combined, the first raised line is embedded in the second sinking groove, and the second raised line is embedded in the first sinking groove.
 6. The ice maker according to claim 1, characterized in that, the ice maker further comprising a first housing; the water storage box is installed in the first housing, and the water storage box and the first housing form a first inner gap.
 7. The ice maker according to claim 6, characterized in that, the ice maker further comprising a second housing; the first housing is installed in the second housing, and the second housing and the first housing form a second inner gap which is used for setting a thermal insulation layer.
 8. The ice maker according to claim 7, characterized in that, the ice maker further comprising a thermal insulation layer, and the thermal insulation layer is arranged in the second inner gap.
 9. The ice maker according to claim 1, characterized in that, there are at least two first opening cavities and at least two second opening cavities; the at least two first opening cavities are arranged horizontally relative to the water storage cavity, and the at least two second opening cavities are arranged horizontally relative to the water storage cavity.
 10. The ice maker according to claim 3, characterized in that, there are at least two first opening cavities and at least two second opening cavities; the at least two first opening cavities are arranged horizontally relative to the water storage cavity, and the at least two second opening cavities are arranged horizontally relative to the water storage cavity.
 11. The ice maker according to claim 5, characterized in that, there are at least two first opening cavities and at least two second opening cavities; the at least two first opening cavities are arranged horizontally relative to the water storage cavity, and the at least two second opening cavities are arranged horizontally relative to the water storage cavity.
 12. The ice maker according to claim 1, characterized in that, there are at least two water storage cavities formed in the water storage box, and a baffle is provided between two adjacent water storage cavities, and a water outlet is opened on the baffle.
 13. The ice maker according to claim 2, characterized in that, there are at least two water storage cavities formed in the water storage box, and a baffle is provided between two adjacent water storage cavities, and a water outlet is opened on the baffle.
 14. The ice maker according to claim 1, characterized in that, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface; wherein, when the first pairing part and the second pairing part are combined and inserted into the water storage cavity, the first pairing part and the second pairing part are suspended in the water storage cavity, the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity, and the first stepped surface cooperates with the second stepped surface, so as to resist the second stepped surface, and the bump protrudes downward relative to the first stepped surface.
 15. The ice maker according to claim 2, characterized in that, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface; wherein, when the first pairing part and the second pairing part are combined and inserted into the water storage cavity, the first pairing part and the second pairing part are suspended in the water storage cavity, the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity, and the first stepped surface cooperates with the second stepped surface, so as to resist the second stepped surface, and the bump protrudes downward relative to the first stepped surface.
 16. The ice maker according to claim 3, characterized in that, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface; wherein, when the first pairing part and the second pairing part are combined and inserted into the water storage cavity, the first pairing part and the second pairing part are suspended in the water storage cavity, the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity, and the first stepped surface cooperates with the second stepped surface, so as to resist the second stepped surface, and the bump protrudes downward relative to the first stepped surface.
 17. The ice maker according to claim 4, characterized in that, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface; wherein, when the first pairing part and the second pairing part are combined and inserted into the water storage cavity, the first pairing part and the second pairing part are suspended in the water storage cavity, the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity, and the first stepped surface cooperates with the second stepped surface, so as to resist the second stepped surface, and the bump protrudes downward relative to the first stepped surface.
 18. The ice maker according to claim 5, characterized in that, a first stepped surface is formed on an inner wall surface of the water storage cavity, and the bottom of the first pairing part and the second pairing part are provided with a bump, and the bump and the edges of the first pairing part and the second pairing part form a second stepped surface; wherein, when the first pairing part and the second pairing part are combined and inserted into the water storage cavity, the first pairing part and the second pairing part are suspended in the water storage cavity, the upper through hole is connected with the outside world and the ice-making cavity, and the lower through hole is connected with the water storage cavity and the ice-making cavity, and the first stepped surface cooperates with the second stepped surface, so as to resist the second stepped surface, and the bump protrudes downward relative to the first stepped surface. 